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Model: L04 Curved Pentagon Positive Return Cam
(Voigt/Reuleaux)
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Model Metadata
Taxonomy:
Voigt
Group:
Positive Return Constant Breadth Cams
ID:
L04
Title (English):
Curved Pentagon Positive Return Cam
Title (German):
Gleichseitiges Bogenfünfeck mit verstellb. Schleife
Creator:
Franz Reuleaux
Date Created:
1882-00-00
Manufacturer:
Gustav Voigt Werkstatt
Size:
Base: Width x Depth [201,88]mm; Overall: W x D x Height [265,120,190]mm
Medium:
cast iron and brass on wood pedestal
Rights:
For educational use only. All rights reserved by the contributor(s) and publisher(s).
Audience:
General public
Keywords:
Description:
An equal sided pentagon with curved sides generated as arcs at the vertices of the pentagon is a closed shape of constant width. Thus, as it rotates it will remain in contact with two parallel slides. Behind the slider, a crank turns the curved pentagon which, in turn, moves the slider back and forth with finite dwell periods similar to the other models in the Voigt ‘V’ series. While the curved triangle was widely used in positive-return cams to control steam engine valves before Reuleaux, he is the first to describe in depth how to generalize curves of constant width and this curved pentagon is used to illustrate the many possibilities of such shapes.
Descr Author:
Francis Moon
Descr Date:
2004-07-00
Image Metadata
Title:
L04. Curved Pentagon Positive Return Cam
Rights:
Jon Reis/www.jonreis.com. Jon Reis Photography grants Cornell University Libraries, and the Cornell College of Engineering the rights to display copyrighted images of the Reuleaux Collection of Kinematic Mechanisms on the Cornell University and National Science Digital Library web sites and for unlimited use in Cornell University Library publications for education purposes only. Rights for all other uses such as editorial, advertising, web use and display by third parties not affiliated with Cornell University are reserved by the photographer.
Descr:
Date Created:
2005-01-19 11:02:16
URL:
http://kmoddl.library.cornell.edu/stillImages/small/L04.jpg
Size (w x h):
384 x 256

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